Corsair TX750 V2 750W & TX850 V2 850W Power Supply Review

Testing:

I short circuited the 3V3, 5V0 and the 12V rail(s) in turn. The power supply did shut down, and once the short was removed and the unit switched off for at least one second, resumed normal operation. Although listed here at the beginning of the testing section, I tend to leave this test until the very end, in case it doesn't quite go to plan.

DC Output Voltage Load Regulation:

Mains Input Voltage 110VAC

Corsair TX750V2 DC Output Voltage Load Regulation

Supply = 110VAC/50Hz

PSU DC Rail

Measured Voltage(V)

3V3

3.36

5V0

5.07

+12V1

12.12

-12V

11.70

5VSB

5.08

Total PSU DC Loading = 0W (0% of Rated Maximum Output Power)

Corsair TX750V2 DC Output Voltage Load Regulation

Supply = 110VAC/50Hz

PSU

DC Rail

Rail Loading Amps (A)

Rail Loading Watts (W)

Measured Voltage (V)

ATX12V V2.2 Limits (V)

Pass/Fail

+3V3

3.19

10.62

3.33

3.135 – 3.465

Pass

+5V

4.83

24.39

5.05

4.75 – 5.25

Pass

+12V1

7.63

92.25

12.09

11.4 – 12.6

Pass

-12V

0.34

3.94

11.66

10.8 – 13.2

Pass

+5VSB

2.12

10.39

4.90

4.75 – 5.25

Pass

Total PSU DC Loading = 142W (19% of Rated Maximum Output Power)

Corsair TX750V2 DC Output Voltage Load Regulation

Supply = 110VAC/50Hz

PSU

DC Rail

Rail Loading Amps (A)

Rail Loading Watts (W)

Measured Voltage (V)

ATX12V V2.2 Limits (V)

Pass/Fail

+3V3

3.17

10.52

3.32

3.135 – 3.465

Pass

+5V

4.80

24.29

5.06

4.75 – 5.25

Pass

+12V1

26.35

318.57

12.09

11.4 – 12.6

Pass

-12V

0.34

3.98

11.70

10.8 – 13.2

Pass

+5VSB

2.12

10.43

4.92

4.75 – 5.25

Pass

Total PSU DC Loading = 368W (49% of Rated Maximum Output Power)

Corsair TX750V2 DC Output Voltage Load Regulation

Supply = 110VAC/50Hz

PSU

DC Rail

Rail Loading Amps (A)

Rail Loading Watts (W)

Measured Voltage (V)

ATX12V V2.2 Limits (V)

Pass/Fail

+3V3

8.28

27.07

3.27

3.135 – 3.465

Pass

+5V

9.88

49.50

5.01

4.75 – 5.25

Pass

+12V1

53.82

648.00

12.04

11.4 – 12.6

Pass

-12V

0.34

3.99

11.75

10.8 – 13.2

Pass

+5VSB

2.11

10.25

4.86

4.75 – 5.25

Pass

Total PSU DC Loading = 739W (98.5% of Rated Maximum Output Power)

Mains Input Voltage 230VAC

Corsair TX750V2 DC Output Voltage Load Regulation

Supply = 230VAC/50Hz

PSU DC Rail

Measured Voltage(V)

3V3

3.36

5V0

5.07

+12V1

12.12

-12V

11.70

5VSB

5.08

Total PSU DC Loading = 0W (0% of Rated Maximum Output Power)

Corsair TX750V2 DC Output Voltage Load Regulation

Supply = 230VAC/50Hz

PSU

DC Rail

Rail Loading Amps (A)

Rail Loading Watts (W)

Measured Voltage (V)

ATX12V V2.2 Limits (V)

Pass/Fail

+3V3

3.18

10.59

3.33

3.135 – 3.465

Pass

+5V

4.80

24.24

5.05

4.75 – 5.25

Pass

+12V1

7.64

92.37

12.09

11.4 – 12.6

Pass

-12V

0.34

3.98

11.70

10.8 – 13.2

Pass

+5VSB

2.12

10.43

4.92

4.75 – 5.25

Pass

Total PSU DC Loading = 142W (19% of Rated Maximum Output Power)

Corsair TX750V2 DC Output Voltage Load Regulation

Supply = 230VAC/50Hz

PSU

DC Rail

Rail Loading Amps (A)

Rail Loading Watts (W)

Measured Voltage (V)

ATX12V V2.2 Limits (V)

Pass/Fail

+3V3

3.18

10.56

3.32

3.135 – 3.465

Pass

+5V

4.81

24.29

5.05

4.75 – 5.25

Pass

+12V1

26.52

320.63

12.09

11.4 – 12.6

Pass

-12V

0.34

3.98

11.70

10.8 – 13.2

Pass

+5VSB

2.12

10.39

4.90

4.75 – 5.25

Pass

Total PSU DC Loading = 370W (49% of Rated Maximum Output Power)

Corsair TX750V2 DC Output Voltage Load Regulation

Supply = 230VAC/50Hz

PSU

DC Rail

Rail Loading Amps (A)

Rail Loading Watts (W)

Measured Voltage (V)

ATX12V V2.2 Limits (V)

Pass/Fail

+3V3

8.30

27.22

3.28

3.135 – 3.465

Pass

+5V

9.85

49.45

5.02

4.75 – 5.25

Pass

+12V1

54.36

654.49

12.04

11.4 – 12.6

Pass

-12V

0.34

3.99

11.74

10.8 – 13.2

Pass

+5VSB

2.11

10.27

4.87

4.75 – 5.25

Pass

Total PSU DC Loading = 745W (99% of Rated Maximum Output Power)

The Corsair TX750V2 power supply produced a great set of results in this section. The regulation was excellent with little voltage drop from zero to full load as shown by what are virtually straight lines on the graphs. No problems here so let's move on.